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chromium / chromium / src / 9e48a72755def0eba2068bfd5e674adda22d1856 / . / services / network / url_loader.cc
blob: efe549c57621e4c0a8ed5f1daed7067fa1f88c51 [file] [log] [blame]
// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "services/network/url_loader.h"
#include <algorithm>
#include <limits>
#include <string>
#include <utility>
#include <vector>
#include "base/bind.h"
#include "base/command_line.h"
#include "base/debug/alias.h"
#include "base/debug/dump_without_crashing.h"
#include "base/files/file.h"
#include "base/logging.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/metrics/histogram_functions.h"
#include "base/metrics/histogram_macros.h"
#include "base/ranges/algorithm.h"
#include "base/strings/strcat.h"
#include "base/strings/stringprintf.h"
#include "base/task/post_task.h"
#include "base/task/thread_pool.h"
#include "base/threading/thread_task_runner_handle.h"
#include "base/time/time.h"
#include "base/trace_event/trace_event.h"
#include "base/trace_event/typed_macros.h"
#include "build/build_config.h"
#include "mojo/public/cpp/system/simple_watcher.h"
#include "net/base/elements_upload_data_stream.h"
#include "net/base/isolation_info.h"
#include "net/base/load_flags.h"
#include "net/base/load_timing_info.h"
#include "net/base/mime_sniffer.h"
#include "net/base/schemeful_site.h"
#include "net/base/transport_info.h"
#include "net/base/upload_bytes_element_reader.h"
#include "net/base/upload_file_element_reader.h"
#include "net/cookies/canonical_cookie.h"
#include "net/cookies/cookie_inclusion_status.h"
#include "net/cookies/site_for_cookies.h"
#include "net/cookies/static_cookie_policy.h"
#include "net/dns/public/secure_dns_policy.h"
#include "net/http/http_request_headers.h"
#include "net/log/net_log_source_type.h"
#include "net/log/net_log_with_source.h"
#include "net/ssl/client_cert_store.h"
#include "net/ssl/ssl_connection_status_flags.h"
#include "net/ssl/ssl_private_key.h"
#include "net/traffic_annotation/network_traffic_annotation.h"
#include "net/url_request/redirect_info.h"
#include "net/url_request/url_request_context.h"
#include "net/url_request/url_request_context_getter.h"
#include "services/network/chunked_data_pipe_upload_data_stream.h"
#include "services/network/data_pipe_element_reader.h"
#include "services/network/origin_policy/origin_policy_constants.h"
#include "services/network/origin_policy/origin_policy_manager.h"
#include "services/network/private_network_access_check.h"
#include "services/network/public/cpp/client_hints.h"
#include "services/network/public/cpp/constants.h"
#include "services/network/public/cpp/corb/orb_impl.h"
#include "services/network/public/cpp/cors/cors.h"
#include "services/network/public/cpp/cors/origin_access_list.h"
#include "services/network/public/cpp/cross_origin_resource_policy.h"
#include "services/network/public/cpp/empty_url_loader_client.h"
#include "services/network/public/cpp/features.h"
#include "services/network/public/cpp/header_util.h"
#include "services/network/public/cpp/ip_address_space_util.h"
#include "services/network/public/cpp/net_adapters.h"
#include "services/network/public/cpp/network_switches.h"
#include "services/network/public/cpp/origin_policy.h"
#include "services/network/public/cpp/parsed_headers.h"
#include "services/network/public/cpp/resource_request.h"
#include "services/network/public/mojom/client_security_state.mojom-forward.h"
#include "services/network/public/mojom/cookie_access_observer.mojom-forward.h"
#include "services/network/public/mojom/cookie_access_observer.mojom.h"
#include "services/network/public/mojom/cookie_manager.mojom.h"
#include "services/network/public/mojom/devtools_observer.mojom.h"
#include "services/network/public/mojom/early_hints.mojom.h"
#include "services/network/public/mojom/fetch_api.mojom.h"
#include "services/network/public/mojom/http_raw_headers.mojom.h"
#include "services/network/public/mojom/origin_policy_manager.mojom.h"
#include "services/network/public/mojom/url_loader_factory.mojom.h"
#include "services/network/public/mojom/url_response_head.mojom.h"
#include "services/network/resource_scheduler/resource_scheduler_client.h"
#include "services/network/sec_header_helpers.h"
#include "services/network/throttling/scoped_throttling_token.h"
#include "services/network/trust_tokens/trust_token_request_helper.h"
#include "services/network/url_loader_factory.h"
#include "third_party/abseil-cpp/absl/types/optional.h"
#include "url/origin.h"
#if BUILDFLAG(IS_ANDROID)
#include "net/base/features.h"
#include "services/network/radio_monitor_android.h"
#endif
namespace network {
namespace {
using ConcerningHeaderId = URLLoader::ConcerningHeaderId;
// Cannot use 0, because this means "default" in
// mojo::core::Core::CreateDataPipe
constexpr size_t kBlockedBodyAllocationSize = 1;
void PopulateResourceResponse(net::URLRequest* request,
bool is_load_timing_enabled,
int32_t options,
network::mojom::URLResponseHead* response) {
response->request_time = request->request_time();
response->response_time = request->response_time();
response->headers = request->response_headers();
response->parsed_headers =
PopulateParsedHeaders(response->headers.get(), request->url());
request->GetCharset(&response->charset);
response->content_length = request->GetExpectedContentSize();
request->GetMimeType(&response->mime_type);
net::HttpResponseInfo response_info = request->response_info();
response->was_fetched_via_spdy = response_info.was_fetched_via_spdy;
response->was_alpn_negotiated = response_info.was_alpn_negotiated;
response->alpn_negotiated_protocol = response_info.alpn_negotiated_protocol;
response->connection_info = response_info.connection_info;
response->remote_endpoint = response_info.remote_endpoint;
response->was_fetched_via_cache = request->was_cached();
response->is_validated = (response_info.cache_entry_status ==
net::HttpResponseInfo::ENTRY_VALIDATED);
response->proxy_server = request->proxy_server();
response->network_accessed = response_info.network_accessed;
response->async_revalidation_requested =
response_info.async_revalidation_requested;
response->was_in_prefetch_cache =
!(request->load_flags() & net::LOAD_PREFETCH) &&
response_info.unused_since_prefetch;
response->was_cookie_in_request = false;
for (const auto& cookie_with_access_result : request->maybe_sent_cookies()) {
if (cookie_with_access_result.access_result.status.IsInclude()) {
// IsInclude() true means the cookie was sent.
response->was_cookie_in_request = true;
break;
}
}
if (is_load_timing_enabled)
request->GetLoadTimingInfo(&response->load_timing);
if (request->ssl_info().cert.get()) {
response->ct_policy_compliance = request->ssl_info().ct_policy_compliance;
response->cert_status = request->ssl_info().cert_status;
net::SSLVersion ssl_version = net::SSLConnectionStatusToVersion(
request->ssl_info().connection_status);
response->is_legacy_tls_version =
ssl_version == net::SSLVersion::SSL_CONNECTION_VERSION_TLS1 ||
ssl_version == net::SSLVersion::SSL_CONNECTION_VERSION_TLS1_1;
if ((options & mojom::kURLLoadOptionSendSSLInfoWithResponse) ||
(net::IsCertStatusError(request->ssl_info().cert_status) &&
(options & mojom::kURLLoadOptionSendSSLInfoForCertificateError))) {
response->ssl_info = request->ssl_info();
}
}
response->request_start = request->creation_time();
response->response_start = base::TimeTicks::Now();
response->encoded_data_length = request->GetTotalReceivedBytes();
response->auth_challenge_info = request->auth_challenge_info();
response->has_range_requested = request->extra_request_headers().HasHeader(
net::HttpRequestHeaders::kRange);
base::ranges::copy(request->response_info().dns_aliases,
std::back_inserter(response->dns_aliases));
// [spec]: https://fetch.spec.whatwg.org/#http-network-or-cache-fetch
// 13. Set response’s request-includes-credentials to includeCredentials.
response->request_include_credentials = request->allow_credentials();
}
// A subclass of net::UploadBytesElementReader which owns
// ResourceRequestBody.
class BytesElementReader : public net::UploadBytesElementReader {
public:
BytesElementReader(ResourceRequestBody* resource_request_body,
const DataElementBytes& element)
: net::UploadBytesElementReader(element.AsStringPiece().data(),
element.AsStringPiece().size()),
resource_request_body_(resource_request_body) {}
BytesElementReader(const BytesElementReader&) = delete;
BytesElementReader& operator=(const BytesElementReader&) = delete;
~BytesElementReader() override {}
private:
scoped_refptr<ResourceRequestBody> resource_request_body_;
};
// A subclass of net::UploadFileElementReader which owns
// ResourceRequestBody.
// This class is necessary to ensure the BlobData and any attached shareable
// files survive until upload completion.
class FileElementReader : public net::UploadFileElementReader {
public:
FileElementReader(ResourceRequestBody* resource_request_body,
base::TaskRunner* task_runner,
const DataElementFile& element,
base::File&& file)
: net::UploadFileElementReader(task_runner,
std::move(file),
element.path(),
element.offset(),
element.length(),
element.expected_modification_time()),
resource_request_body_(resource_request_body) {}
FileElementReader(const FileElementReader&) = delete;
FileElementReader& operator=(const FileElementReader&) = delete;
~FileElementReader() override {}
private:
scoped_refptr<ResourceRequestBody> resource_request_body_;
};
std::unique_ptr<net::UploadDataStream> CreateUploadDataStream(
ResourceRequestBody* body,
std::vector<base::File>& opened_files,
base::SequencedTaskRunner* file_task_runner) {
// In the case of a chunked upload, there will just be one element.
if (body->elements()->size() == 1) {
if (body->elements()->begin()->type() ==
network::mojom::DataElementDataView::Tag::kChunkedDataPipe) {
auto& element =
body->elements_mutable()->at(0).As<DataElementChunkedDataPipe>();
auto upload_data_stream =
std::make_unique<ChunkedDataPipeUploadDataStream>(
body, element.ReleaseChunkedDataPipeGetter());
if (element.read_only_once()) {
upload_data_stream->EnableCache();
}
return upload_data_stream;
}
}
auto opened_file = opened_files.begin();
std::vector<std::unique_ptr<net::UploadElementReader>> element_readers;
for (const auto& element : *body->elements()) {
switch (element.type()) {
case network::mojom::DataElementDataView::Tag::kBytes:
element_readers.push_back(std::make_unique<BytesElementReader>(
body, element.As<DataElementBytes>()));
break;
case network::mojom::DataElementDataView::Tag::kFile:
DCHECK(opened_file != opened_files.end());
element_readers.push_back(std::make_unique<FileElementReader>(
body, file_task_runner, element.As<network::DataElementFile>(),
std::move(*opened_file++)));
break;
case network::mojom::DataElementDataView::Tag::kDataPipe: {
element_readers.push_back(std::make_unique<DataPipeElementReader>(
body,
element.As<network::DataElementDataPipe>().CloneDataPipeGetter()));
break;
}
case network::mojom::DataElementDataView::Tag::kChunkedDataPipe: {
// This shouldn't happen, as the traits logic should ensure that if
// there's a chunked pipe, there's one and only one element.
NOTREACHED();
break;
}
}
}
DCHECK(opened_file == opened_files.end());
return std::make_unique<net::ElementsUploadDataStream>(
std::move(element_readers), body->identifier());
}
class SSLPrivateKeyInternal : public net::SSLPrivateKey {
public:
SSLPrivateKeyInternal(
const std::string& provider_name,
const std::vector<uint16_t>& algorithm_preferences,
mojo::PendingRemote<mojom::SSLPrivateKey> ssl_private_key)
: provider_name_(provider_name),
algorithm_preferences_(algorithm_preferences),
ssl_private_key_(std::move(ssl_private_key)) {
ssl_private_key_.set_disconnect_handler(
base::BindOnce(&SSLPrivateKeyInternal::HandleSSLPrivateKeyError,
base::Unretained(this)));
}
SSLPrivateKeyInternal(const SSLPrivateKeyInternal&) = delete;
SSLPrivateKeyInternal& operator=(const SSLPrivateKeyInternal&) = delete;
// net::SSLPrivateKey:
std::string GetProviderName() override { return provider_name_; }
std::vector<uint16_t> GetAlgorithmPreferences() override {
return algorithm_preferences_;
}
void Sign(uint16_t algorithm,
base::span<const uint8_t> input,
net::SSLPrivateKey::SignCallback callback) override {
std::vector<uint8_t> input_vector(input.begin(), input.end());
if (!ssl_private_key_ || !ssl_private_key_.is_connected()) {
base::ThreadTaskRunnerHandle::Get()->PostTask(
FROM_HERE,
base::BindOnce(std::move(callback),
net::ERR_SSL_CLIENT_AUTH_CERT_NO_PRIVATE_KEY,
input_vector));
return;
}
ssl_private_key_->Sign(algorithm, input_vector,
base::BindOnce(&SSLPrivateKeyInternal::Callback,
this, std::move(callback)));
}
private:
~SSLPrivateKeyInternal() override = default;
void HandleSSLPrivateKeyError() { ssl_private_key_.reset(); }
void Callback(net::SSLPrivateKey::SignCallback callback,
int32_t net_error,
const std::vector<uint8_t>& input) {
DCHECK_LE(net_error, 0);
DCHECK_NE(net_error, net::ERR_IO_PENDING);
std::move(callback).Run(static_cast<net::Error>(net_error), input);
}
std::string provider_name_;
std::vector<uint16_t> algorithm_preferences_;
mojo::Remote<mojom::SSLPrivateKey> ssl_private_key_;
};
bool ShouldNotifyAboutCookie(net::CookieInclusionStatus status) {
// Notify about cookies actually used, and those blocked by preferences ---
// for purposes of cookie UI --- as well those carrying warnings pertaining to
// SameSite features, in order to issue a deprecation warning for them.
return status.IsInclude() || status.ShouldWarn() ||
status.HasExclusionReason(
net::CookieInclusionStatus::EXCLUDE_USER_PREFERENCES) ||
status.HasExclusionReason(
net::CookieInclusionStatus::EXCLUDE_INVALID_SAMEPARTY);
}
// Concerning headers that consumers probably shouldn't be allowed to set.
// Gathering numbers on these before adding them to kUnsafeHeaders.
const struct {
const char* name;
ConcerningHeaderId histogram_id;
} kConcerningHeaders[] = {
{net::HttpRequestHeaders::kConnection, ConcerningHeaderId::kConnection},
{net::HttpRequestHeaders::kCookie, ConcerningHeaderId::kCookie},
{"Date", ConcerningHeaderId::kDate},
{"Expect", ConcerningHeaderId::kExpect},
// The referer is passed in from the caller on a per-request basis, but
// there's a separate field for it that should be used instead.
{net::HttpRequestHeaders::kReferer, ConcerningHeaderId::kReferer},
{"Via", ConcerningHeaderId::kVia},
};
void ReportFetchUploadStreamingUMA(const net::URLRequest* request,
bool allow_http1_for_streaming_upload) {
// Same as tools/metrics/histograms/enums.xml's.
enum class HttpProtocolScheme {
kHTTP1_1 = 0,
kHTTP2 = 1,
kQUIC = 2,
kMaxValue = kQUIC
} protocol;
const auto connection_info = request->response_info().connection_info;
switch (net::HttpResponseInfo::ConnectionInfoToCoarse(connection_info)) {
case net::HttpResponseInfo::CONNECTION_INFO_COARSE_HTTP1:
protocol = HttpProtocolScheme::kHTTP1_1;
break;
case net::HttpResponseInfo::CONNECTION_INFO_COARSE_HTTP2:
protocol = HttpProtocolScheme::kHTTP2;
break;
case net::HttpResponseInfo::CONNECTION_INFO_COARSE_QUIC:
protocol = HttpProtocolScheme::kQUIC;
break;
case net::HttpResponseInfo::CONNECTION_INFO_COARSE_OTHER:
protocol = HttpProtocolScheme::kHTTP1_1;
break;
}
if (allow_http1_for_streaming_upload) {
base::UmaHistogramEnumeration("Net.Fetch.UploadStreamingProtocolAllowH1",
protocol);
} else {
base::UmaHistogramEnumeration("Net.Fetch.UploadStreamingProtocolNotAllowH1",
protocol);
}
}
// Parses AcceptCHFrame and removes client hints already in the headers.
std::vector<mojom::WebClientHintsType> ComputeAcceptCHFrameHints(
const std::string& accept_ch_frame,
const net::HttpRequestHeaders& headers) {
absl::optional<std::vector<mojom::WebClientHintsType>> maybe_hints =
ParseClientHintsHeader(accept_ch_frame);
if (!maybe_hints)
return {};
// Only look at/add headers that aren't already present.
std::vector<mojom::WebClientHintsType> hints;
for (auto hint : maybe_hints.value()) {
// ResourceWidth is only for images, which won't trigger a restart.
if (hint == mojom::WebClientHintsType::kResourceWidth ||
hint == mojom::WebClientHintsType::kResourceWidth_DEPRECATED) {
continue;
}
const std::string header = GetClientHintToNameMap().at(hint);
if (!headers.HasHeader(header))
hints.push_back(hint);
}
return hints;
}
// Returns true if the |credentials_mode| of the request allows sending
// credentials.
bool ShouldAllowCredentials(mojom::CredentialsMode credentials_mode) {
switch (credentials_mode) {
case mojom::CredentialsMode::kInclude:
// TODO(crbug.com/943939): Make this work with CredentialsMode::kSameOrigin.
case mojom::CredentialsMode::kSameOrigin:
return true;
case mojom::CredentialsMode::kOmit:
case mojom::CredentialsMode::kOmitBug_775438_Workaround:
return false;
}
}
// Returns true when the |credentials_mode| of the request allows sending client
// certificates.
bool ShouldSendClientCertificates(mojom::CredentialsMode credentials_mode) {
switch (credentials_mode) {
case mojom::CredentialsMode::kInclude:
case mojom::CredentialsMode::kOmit:
case mojom::CredentialsMode::kSameOrigin:
return true;
case mojom::CredentialsMode::kOmitBug_775438_Workaround:
return false;
}
}
} // namespace
URLLoader::MaybeSyncURLLoaderClient::MaybeSyncURLLoaderClient(
mojo::PendingRemote<mojom::URLLoaderClient> mojo_client,
base::WeakPtr<mojom::URLLoaderClient> sync_client)
: mojo_client_(std::move(mojo_client)),
sync_client_(std::move(sync_client)) {}
URLLoader::MaybeSyncURLLoaderClient::~MaybeSyncURLLoaderClient() = default;
void URLLoader::MaybeSyncURLLoaderClient::Reset() {
mojo_client_.reset();
sync_client_.reset();
}
mojo::PendingReceiver<mojom::URLLoaderClient>
URLLoader::MaybeSyncURLLoaderClient::BindNewPipeAndPassReceiver() {
sync_client_.reset();
return mojo_client_.BindNewPipeAndPassReceiver();
}
mojom::URLLoaderClient* URLLoader::MaybeSyncURLLoaderClient::Get() {
if (sync_client_)
return sync_client_.get();
if (mojo_client_)
return mojo_client_.get();
return nullptr;
}
URLLoader::URLLoader(
net::URLRequestContext* url_request_context,
URLLoaderFactory* url_loader_factory,
mojom::NetworkContextClient* network_context_client,
DeleteCallback delete_callback,
mojo::PendingReceiver<mojom::URLLoader> url_loader_receiver,
int32_t options,
const ResourceRequest& request,
mojo::PendingRemote<mojom::URLLoaderClient> url_loader_client,
base::WeakPtr<mojom::URLLoaderClient> sync_url_loader_client,
const net::NetworkTrafficAnnotationTag& traffic_annotation,
const mojom::URLLoaderFactoryParams* factory_params,
mojom::CrossOriginEmbedderPolicyReporter* coep_reporter,
uint32_t request_id,
int keepalive_request_size,
bool require_network_isolation_key,
scoped_refptr<ResourceSchedulerClient> resource_scheduler_client,
base::WeakPtr<KeepaliveStatisticsRecorder> keepalive_statistics_recorder,
mojom::TrustedURLLoaderHeaderClient* url_loader_header_client,
mojom::OriginPolicyManager* origin_policy_manager,
std::unique_ptr<TrustTokenRequestHelperFactory> trust_token_helper_factory,
const cors::OriginAccessList& origin_access_list,
mojo::PendingRemote<mojom::CookieAccessObserver> cookie_observer,
mojo::PendingRemote<mojom::URLLoaderNetworkServiceObserver>
url_loader_network_observer,
mojo::PendingRemote<mojom::DevToolsObserver> devtools_observer,
mojo::PendingRemote<mojom::AcceptCHFrameObserver> accept_ch_frame_observer)
: url_request_context_(url_request_context),
url_loader_factory_(url_loader_factory),
network_context_client_(network_context_client),
delete_callback_(std::move(delete_callback)),
options_(options),
corb_detachable_(request.corb_detachable),
resource_type_(request.resource_type),
is_load_timing_enabled_(request.enable_load_timing),
factory_params_(factory_params),
coep_reporter_(coep_reporter),
request_id_(request_id),
keepalive_request_size_(keepalive_request_size),
keepalive_(request.keepalive),
do_not_prompt_for_login_(request.do_not_prompt_for_login),
receiver_(this, std::move(url_loader_receiver)),
url_loader_client_(std::move(url_loader_client),
std::move(sync_url_loader_client)),
writable_handle_watcher_(FROM_HERE,
mojo::SimpleWatcher::ArmingPolicy::MANUAL,
base::SequencedTaskRunnerHandle::Get()),
peer_closed_handle_watcher_(FROM_HERE,
mojo::SimpleWatcher::ArmingPolicy::MANUAL,
base::SequencedTaskRunnerHandle::Get()),
devtools_request_id_(request.devtools_request_id),
request_mode_(request.mode),
request_credentials_mode_(request.credentials_mode),
request_destination_(request.destination),
resource_scheduler_client_(std::move(resource_scheduler_client)),
keepalive_statistics_recorder_(std::move(keepalive_statistics_recorder)),
custom_proxy_pre_cache_headers_(request.custom_proxy_pre_cache_headers),
custom_proxy_post_cache_headers_(request.custom_proxy_post_cache_headers),
fetch_window_id_(request.fetch_window_id),
target_ip_address_space_(request.target_ip_address_space),
trust_token_helper_factory_(std::move(trust_token_helper_factory)),
origin_access_list_(origin_access_list),
cookie_observer_(std::move(cookie_observer)),
url_loader_network_observer_(std::move(url_loader_network_observer)),
devtools_observer_(std::move(devtools_observer)),
has_fetch_streaming_upload_body_(HasFetchStreamingUploadBody(&request)),
allow_http1_for_streaming_upload_(
request.request_body &&
request.request_body->AllowHTTP1ForStreamingUpload()),
accept_ch_frame_observer_(std::move(accept_ch_frame_observer)) {
TRACE_EVENT("loading", "URLLoader::URLLoader",
perfetto::Flow::FromPointer(this));
DCHECK(delete_callback_);
DCHECK(factory_params_);
if (url_loader_header_client &&
(options_ & mojom::kURLLoadOptionUseHeaderClient)) {
if (options_ & mojom::kURLLoadOptionAsCorsPreflight) {
url_loader_header_client->OnLoaderForCorsPreflightCreated(
request, header_client_.BindNewPipeAndPassReceiver());
} else {
url_loader_header_client->OnLoaderCreated(
request_id_, header_client_.BindNewPipeAndPassReceiver());
}
// Make sure the loader dies if |header_client_| has an error, otherwise
// requests can hang.
header_client_.set_disconnect_handler(
base::BindOnce(&URLLoader::OnMojoDisconnect, base::Unretained(this)));
}
if (devtools_request_id()) {
options_ |= mojom::kURLLoadOptionSendSSLInfoWithResponse |
mojom::kURLLoadOptionSendSSLInfoForCertificateError;
}
receiver_.set_disconnect_handler(
base::BindOnce(&URLLoader::OnMojoDisconnect, base::Unretained(this)));
url_request_ = url_request_context_->CreateRequest(
GURL(request.url), request.priority, this, traffic_annotation,
/*is_for_websockets=*/false, request.net_log_create_info);
url_request_->set_method(request.method);
url_request_->set_site_for_cookies(request.site_for_cookies);
if (ShouldForceIgnoreSiteForCookies(request))
url_request_->set_force_ignore_site_for_cookies(true);
if (!request.navigation_redirect_chain.empty()) {
DCHECK_EQ(request.mode, mojom::RequestMode::kNavigate);
url_request_->SetURLChain(request.navigation_redirect_chain);
}
url_request_->SetReferrer(request.referrer.GetAsReferrer().spec());
url_request_->set_referrer_policy(request.referrer_policy);
url_request_->set_upgrade_if_insecure(request.upgrade_if_insecure);
if (!factory_params_->isolation_info.IsEmpty()) {
url_request_->set_isolation_info(factory_params_->isolation_info);
} else if (request.trusted_params &&
!request.trusted_params->isolation_info.IsEmpty()) {
url_request_->set_isolation_info(request.trusted_params->isolation_info);
if (request.credentials_mode != network::mojom::CredentialsMode::kOmit) {
DCHECK(url_request_->isolation_info().site_for_cookies().IsEquivalent(
request.site_for_cookies));
}
} else if (factory_params_->automatically_assign_isolation_info) {
url::Origin origin = url::Origin::Create(request.url);
url_request_->set_isolation_info(
net::IsolationInfo::Create(net::IsolationInfo::RequestType::kOther,
origin, origin, net::SiteForCookies()));
}
if (require_network_isolation_key)
DCHECK(!url_request_->isolation_info().IsEmpty());
if (ShouldForceIgnoreTopFramePartyForCookies())
url_request_->set_force_ignore_top_frame_party_for_cookies(true);
// When a service worker forwards a navigation request it uses the
// service worker's IsolationInfo. This causes the cookie code to fail
// to send SameSite=Lax cookies for main-frame navigations passed through
// a service worker. To fix this we check to see if the original destination
// of the request was a main frame document and then set a flag indicating
// SameSite cookies should treat it as a main frame navigation.
if (request.mode == mojom::RequestMode::kNavigate &&
request.destination == mojom::RequestDestination::kEmpty &&
request.original_destination == mojom::RequestDestination::kDocument) {
url_request_->set_force_main_frame_for_same_site_cookies(true);
}
if (factory_params_->disable_secure_dns ||
(request.trusted_params && request.trusted_params->disable_secure_dns)) {
url_request_->SetSecureDnsPolicy(net::SecureDnsPolicy::kDisable);
}
// |cors_excempt_headers| must be merged here to avoid breaking CORS checks.
// They are non-empty when the values are given by the UA code, therefore
// they should be ignored by CORS checks.
net::HttpRequestHeaders merged_headers = request.headers;
merged_headers.MergeFrom(request.cors_exempt_headers);
if (request.obey_origin_policy) {
DCHECK(origin_policy_manager);
origin_policy_manager_ = origin_policy_manager;
}
// This should be ensured by the CorsURLLoaderFactory(), which is called
// before URLLoaders are created.
DCHECK(AreRequestHeadersSafe(merged_headers));
url_request_->SetExtraRequestHeaders(merged_headers);
url_request_->SetUserData(kUserDataKey,
std::make_unique<UnownedPointer>(this));
url_request_->set_accepted_stream_types(
request.devtools_accepted_stream_types);
if (request.trusted_params) {
has_user_activation_ = request.trusted_params->has_user_activation;
if (factory_params_->client_security_state) {
// Enforce that only one ClientSecurityState is ever given to us, as this
// is an invariant in the current codebase. In case of a compromised
// renderer process, we might be passed both, in which case we prefer to
// use the factory params' value: contrary to the request params, it is
// always sourced from the browser process.
DCHECK(!request.trusted_params->client_security_state)
<< "Must not provide a ClientSecurityState in both "
"URLLoaderFactoryParams and ResourceRequest::TrustedParams.";
} else {
// This might be nullptr, but that does not matter. Clone it anyways.
request_client_security_state_ =
request.trusted_params->client_security_state.Clone();
}
}
throttling_token_ = network::ScopedThrottlingToken::MaybeCreate(
url_request_->net_log().source().id, request.throttling_profile_id);
url_request_->set_initiator(request.request_initiator);
SetFetchMetadataHeaders(url_request_.get(), request_mode_,
has_user_activation_, request_destination_, nullptr,
*factory_params_, origin_access_list_);
if (request.update_first_party_url_on_redirect) {
url_request_->set_first_party_url_policy(
net::RedirectInfo::FirstPartyURLPolicy::UPDATE_URL_ON_REDIRECT);
}
url_request_->SetLoadFlags(request.load_flags);
SetRequestCredentials(request.url);
url_request_->SetRequestHeadersCallback(base::BindRepeating(
&URLLoader::SetRawRequestHeadersAndNotify, base::Unretained(this)));
if (devtools_request_id()) {
url_request_->SetResponseHeadersCallback(base::BindRepeating(
&URLLoader::SetRawResponseHeaders, base::Unretained(this)));
}
url_request_->SetEarlyResponseHeadersCallback(base::BindRepeating(
&URLLoader::NotifyEarlyResponse, base::Unretained(this)));
if (keepalive_ && keepalive_statistics_recorder_) {
keepalive_statistics_recorder_->OnLoadStarted(
*factory_params_->top_frame_id, keepalive_request_size_);
}
if (request.net_log_reference_info) {
// Log source object that created the request, if avairable.
url_request_->net_log().AddEventReferencingSource(
net::NetLogEventType::CREATED_BY,
request.net_log_reference_info.value());
}
#if BUILDFLAG(IS_ANDROID)
if (base::FeatureList::IsEnabled(net::features::kRecordRadioWakeupTrigger)) {
MaybeRecordURLLoaderCreationForWakeupTrigger(request, traffic_annotation);
}
#endif
// Resolve elements from request_body and prepare upload data.
if (request.request_body.get()) {
OpenFilesForUpload(request);
return;
}
BeginTrustTokenOperationIfNecessaryAndThenScheduleStart(request);
}
// This class is used to manage the queue of pending file upload operations
// initiated by the URLLoader::OpenFilesForUpload().
class URLLoader::FileOpenerForUpload {
public:
typedef base::OnceCallback<void(int, std::vector<base::File>)>
SetUpUploadCallback;
FileOpenerForUpload(std::vector<base::FilePath> paths,
URLLoader* url_loader,
int32_t process_id,
mojom::NetworkContextClient* const network_context_client,
SetUpUploadCallback set_up_upload_callback)
: paths_(std::move(paths)),
url_loader_(url_loader),
process_id_(process_id),
network_context_client_(network_context_client),
set_up_upload_callback_(std::move(set_up_upload_callback)) {
StartOpeningNextBatch();
}
FileOpenerForUpload(const FileOpenerForUpload&) = delete;
FileOpenerForUpload& operator=(const FileOpenerForUpload&) = delete;
~FileOpenerForUpload() {
if (!opened_files_.empty())
PostCloseFiles(std::move(opened_files_));
}
private:
static void OnFilesForUploadOpened(
base::WeakPtr<FileOpenerForUpload> file_opener,
size_t num_files_requested,
int error_code,
std::vector<base::File> opened_files) {
if (!file_opener) {
PostCloseFiles(std::move(opened_files));
return;
}
if (error_code == net::OK && num_files_requested != opened_files.size())
error_code = net::ERR_FAILED;
if (error_code != net::OK) {
PostCloseFiles(std::move(opened_files));
file_opener->FilesForUploadOpenedDone(error_code);
return;
}
for (base::File& file : opened_files)
file_opener->opened_files_.push_back(std::move(file));
if (file_opener->opened_files_.size() < file_opener->paths_.size()) {
file_opener->StartOpeningNextBatch();
return;
}
file_opener->FilesForUploadOpenedDone(net::OK);
}
// |opened_files| need to be closed on a blocking task runner, so move the
// |opened_files| vector onto a sequence that can block so it gets destroyed
// there.
static void PostCloseFiles(std::vector<base::File> opened_files) {
base::ThreadPool::PostTask(
FROM_HERE, {base::MayBlock(), base::TaskPriority::USER_BLOCKING},
base::BindOnce([](std::vector<base::File>) {},
std::move(opened_files)));
}
void StartOpeningNextBatch() {
size_t num_files_to_request = std::min(paths_.size() - opened_files_.size(),
kMaxFileUploadRequestsPerBatch);
std::vector<base::FilePath> batch_paths(
paths_.begin() + opened_files_.size(),
paths_.begin() + opened_files_.size() + num_files_to_request);
network_context_client_->OnFileUploadRequested(
process_id_, /*async=*/true, batch_paths,
base::BindOnce(&FileOpenerForUpload::OnFilesForUploadOpened,
weak_ptr_factory_.GetWeakPtr(), num_files_to_request));
}
void FilesForUploadOpenedDone(int error_code) {
url_loader_->url_request_->LogUnblocked();
if (error_code == net::OK)
std::move(set_up_upload_callback_).Run(net::OK, std::move(opened_files_));
else
std::move(set_up_upload_callback_).Run(error_code, {});
}
// The paths of files for upload
const std::vector<base::FilePath> paths_;
const raw_ptr<URLLoader> url_loader_;
const int32_t process_id_;
const raw_ptr<mojom::NetworkContextClient> network_context_client_;
SetUpUploadCallback set_up_upload_callback_;
// The files opened so far.
std::vector<base::File> opened_files_;
base::WeakPtrFactory<FileOpenerForUpload> weak_ptr_factory_{this};
};
void URLLoader::OpenFilesForUpload(const ResourceRequest& request) {
std::vector<base::FilePath> paths;
for (const auto& element : *request.request_body.get()->elements()) {
if (element.type() == mojom::DataElementDataView::Tag::kFile) {
paths.push_back(element.As<network::DataElementFile>().path());
}
}
if (paths.empty()) {
SetUpUpload(request, net::OK, std::vector<base::File>());
return;
}
if (!network_context_client_) {
DLOG(ERROR) << "URLLoader couldn't upload a file because no "
"NetworkContextClient is set.";
// Defer calling NotifyCompleted to make sure the URLLoader finishes
// initializing before getting deleted.
base::SequencedTaskRunnerHandle::Get()->PostTask(
FROM_HERE,
base::BindOnce(&URLLoader::NotifyCompleted, base::Unretained(this),
net::ERR_ACCESS_DENIED));
return;
}
url_request_->LogBlockedBy("Opening Files");
file_opener_for_upload_ = std::make_unique<FileOpenerForUpload>(
std::move(paths), this, factory_params_->process_id,
network_context_client_,
base::BindOnce(&URLLoader::SetUpUpload, base::Unretained(this), request));
}
void URLLoader::SetUpUpload(const ResourceRequest& request,
int error_code,
std::vector<base::File> opened_files) {
if (error_code != net::OK) {
DCHECK(opened_files.empty());
// Defer calling NotifyCompleted to make sure the URLLoader finishes
// initializing before getting deleted.
base::SequencedTaskRunnerHandle::Get()->PostTask(
FROM_HERE, base::BindOnce(&URLLoader::NotifyCompleted,
base::Unretained(this), error_code));
return;
}
scoped_refptr<base::SequencedTaskRunner> task_runner =
base::ThreadPool::CreateSequencedTaskRunner(
{base::MayBlock(), base::TaskPriority::USER_VISIBLE});
url_request_->set_upload(CreateUploadDataStream(
request.request_body.get(), opened_files, task_runner.get()));
if (request.enable_upload_progress) {
upload_progress_tracker_ = std::make_unique<UploadProgressTracker>(
FROM_HERE,
base::BindRepeating(&URLLoader::SendUploadProgress,
base::Unretained(this)),
url_request_.get());
}
BeginTrustTokenOperationIfNecessaryAndThenScheduleStart(request);
}
void URLLoader::BeginTrustTokenOperationIfNecessaryAndThenScheduleStart(
const ResourceRequest& request) {
if (!request.trust_token_params) {
ScheduleStart();
return;
}
// Since the request has trust token parameters, |trust_token_helper_factory_|
// is guaranteed to be non-null by URLLoader's constructor's contract.
DCHECK(trust_token_helper_factory_);
trust_token_helper_factory_->CreateTrustTokenHelperForRequest(
*url_request_, request.trust_token_params.value(),
base::BindOnce(&URLLoader::OnDoneConstructingTrustTokenHelper,
weak_ptr_factory_.GetWeakPtr(),
request.trust_token_params->type));
}
void URLLoader::OnDoneConstructingTrustTokenHelper(
mojom::TrustTokenOperationType type,
TrustTokenStatusOrRequestHelper status_or_helper) {
if (!status_or_helper.ok()) {
trust_token_status_ = status_or_helper.status();
// Defer calling NotifyCompleted to make sure the URLLoader
// finishes initializing before getting deleted.
base::SequencedTaskRunnerHandle::Get()->PostTask(
FROM_HERE, base::BindOnce(&URLLoader::NotifyCompleted,
weak_ptr_factory_.GetWeakPtr(),
net::ERR_TRUST_TOKEN_OPERATION_FAILED));
auto* devtools_observer = GetDevToolsObserver();
if (devtools_observer && devtools_request_id()) {
mojom::TrustTokenOperationResultPtr operation_result =
mojom::TrustTokenOperationResult::New();
operation_result->status = *trust_token_status_;
operation_result->type = type;
devtools_observer->OnTrustTokenOperationDone(
devtools_request_id().value(), std::move(operation_result));
}
return;
}
trust_token_helper_ = status_or_helper.TakeOrCrash();
trust_token_helper_->Begin(
url_request_.get(),
base::BindOnce(&URLLoader::OnDoneBeginningTrustTokenOperation,
weak_ptr_factory_.GetWeakPtr()));
}
void URLLoader::OnDoneBeginningTrustTokenOperation(
mojom::TrustTokenOperationStatus status) {
trust_token_status_ = status;
// In case the operation failed or it succeeded in a manner where the request
// does not need to be sent onwards, the DevTools event is emitted from here.
// Otherwise the DevTools event is always emitted from
// |OnDoneFinalizingTrustTokenOperation|.
if (status != mojom::TrustTokenOperationStatus::kOk) {
MaybeSendTrustTokenOperationResultToDevTools();
}
if (status == mojom::TrustTokenOperationStatus::kOk) {
ScheduleStart();
} else if (status == mojom::TrustTokenOperationStatus::kAlreadyExists ||
status == mojom::TrustTokenOperationStatus::
kOperationSuccessfullyFulfilledLocally) {
// The Trust Tokens operation succeeded without needing to send the request;
// we return early with an "error" representing this success.
//
// Here and below, defer calling NotifyCompleted to make sure the URLLoader
// finishes initializing before getting deleted.
base::SequencedTaskRunnerHandle::Get()->PostTask(
FROM_HERE,
base::BindOnce(
&URLLoader::NotifyCompleted, weak_ptr_factory_.GetWeakPtr(),
net::ERR_TRUST_TOKEN_OPERATION_SUCCESS_WITHOUT_SENDING_REQUEST));
} else {
base::SequencedTaskRunnerHandle::Get()->PostTask(
FROM_HERE, base::BindOnce(&URLLoader::NotifyCompleted,
weak_ptr_factory_.GetWeakPtr(),
net::ERR_TRUST_TOKEN_OPERATION_FAILED));
}
}
void URLLoader::ScheduleStart() {
bool defer = false;
if (resource_scheduler_client_) {
resource_scheduler_request_handle_ =
resource_scheduler_client_->ScheduleRequest(
!(options_ & mojom::kURLLoadOptionSynchronous), url_request_.get());
resource_scheduler_request_handle_->set_resume_callback(
base::BindOnce(&URLLoader::ResumeStart, base::Unretained(this)));
resource_scheduler_request_handle_->WillStartRequest(&defer);
}
if (defer)
url_request_->LogBlockedBy("ResourceScheduler");
else
url_request_->Start();
}
URLLoader::~URLLoader() {
TRACE_EVENT("loading", "URLLoader::~URLLoader",
perfetto::TerminatingFlow::FromPointer(this));
RecordBodyReadFromNetBeforePausedIfNeeded();
if (keepalive_ && keepalive_statistics_recorder_) {
keepalive_statistics_recorder_->OnLoadFinished(
*factory_params_->top_frame_id, keepalive_request_size_);
}
}
// static
const void* const URLLoader::kUserDataKey = &URLLoader::kUserDataKey;
void URLLoader::FollowRedirect(
const std::vector<std::string>& removed_headers,
const net::HttpRequestHeaders& modified_headers,
const net::HttpRequestHeaders& modified_cors_exempt_headers,
const absl::optional<GURL>& new_url) {
if (!deferred_redirect_url_) {
NOTREACHED();
return;
}
// Set seen_raw_request_headers_ to false in order to make sure this redirect
// also calls the devtools observer.
seen_raw_request_headers_ = false;
// Removing headers can't make the set of pre-existing headers unsafe, but
// adding headers can.
if (!AreRequestHeadersSafe(modified_headers) ||
!AreRequestHeadersSafe(modified_cors_exempt_headers)) {
NotifyCompleted(net::ERR_INVALID_ARGUMENT);
// |this| may have been deleted.
return;
}
if (!modified_headers.IsEmpty())
LogConcerningRequestHeaders(modified_headers,
true /* added_during_redirect */);
deferred_redirect_url_.reset();
new_redirect_url_ = new_url;
net::HttpRequestHeaders merged_modified_headers;
merged_modified_headers.CopyFrom(modified_headers);
merged_modified_headers.MergeFrom(modified_cors_exempt_headers);
url_request_->FollowDeferredRedirect(removed_headers,
merged_modified_headers);
new_redirect_url_.reset();
}
void URLLoader::SetPriority(net::RequestPriority priority,
int32_t intra_priority_value) {
if (url_request_ && resource_scheduler_client_) {
resource_scheduler_client_->ReprioritizeRequest(
url_request_.get(), priority, intra_priority_value);
}
}
void URLLoader::PauseReadingBodyFromNet() {
DVLOG(1) << "URLLoader pauses fetching response body for "
<< (url_request_ ? url_request_->original_url().spec()
: "a URL that has completed loading or failed.");
// Please note that we pause reading body in all cases. Even if the URL
// request indicates that the response was cached, there could still be
// network activity involved. For example, the response was only partially
// cached.
//
// On the other hand, we only report BodyReadFromNetBeforePaused histogram
// when we are sure that the response body hasn't been read from cache. This
// avoids polluting the histogram data with data points from cached responses.
should_pause_reading_body_ = true;
if (read_in_progress_) {
update_body_read_before_paused_ = true;
} else {
body_read_before_paused_ = url_request_->GetRawBodyBytes();
}
}
void URLLoader::ResumeReadingBodyFromNet() {
DVLOG(1) << "URLLoader resumes fetching response body for "
<< (url_request_ ? url_request_->original_url().spec()
: "a URL that has completed loading or failed.");
should_pause_reading_body_ = false;
if (paused_reading_body_) {
paused_reading_body_ = false;
ReadMore();
}
}
// WARNING: This should be kept in sync with similar logic in
// `network::cors::CorsURLLoader::GetClientSecurityState()`.
const mojom::ClientSecurityState* URLLoader::GetClientSecurityState() const {
// Depending on the type of URL request, we source the client security state
// from either the URLRequest's trusted params (for navigations, which share
// a factory) or the URLLoaderFactory's params. We prefer the factory params
// over the request params, as the former always come from the browser
// process.
if (factory_params_->client_security_state) {
return factory_params_->client_security_state.get();
}
return request_client_security_state_.get();
}
PrivateNetworkAccessCheckResult URLLoader::PrivateNetworkAccessCheck(
const net::TransportInfo& transport_info) {
resource_ip_address_space_ = TransportInfoToIPAddressSpace(transport_info);
const mojom::ClientSecurityState* security_state = GetClientSecurityState();
// Fully-qualify function name to disambiguate it, otherwise it resolves to
// `URLLoader::PrivateNetworkAccessCheck()` and fails to compile.
PrivateNetworkAccessCheckResult result = network::PrivateNetworkAccessCheck(
security_state, target_ip_address_space_, options_,
resource_ip_address_space_);
bool is_warning = false;
switch (result) {
case PrivateNetworkAccessCheckResult::kAllowedByPolicyWarn:
is_warning = true;
break;
case PrivateNetworkAccessCheckResult::kBlockedByPolicyBlock:
is_warning = false;
break;
default:
// Do not report anything to DevTools in these cases.
return result;
}
// If `security_state` was nullptr, then `result` should not have mentioned
// the policy set in `security_state->private_network_request_policy`.
DCHECK(security_state);
if (auto* devtools_observer = GetDevToolsObserver()) {
devtools_observer->OnPrivateNetworkRequest(
devtools_request_id(), url_request_->url(), is_warning,
resource_ip_address_space_, security_state->Clone());
}
return result;
}
int URLLoader::OnConnected(net::URLRequest* url_request,
const net::TransportInfo& info,
net::CompletionOnceCallback callback) {
DCHECK_EQ(url_request, url_request_.get());
DVLOG(1) << "Connection obtained for URL request to " << url_request->url()
<< ": " << info;
// Now that the request endpoint's address has been resolved, check if
// this request should be blocked per Private Network Access.
absl::optional<mojom::CorsError> cors_error =
PrivateNetworkAccessCheckResultToCorsError(
PrivateNetworkAccessCheck(info));
if (cors_error.has_value()) {
// Remember the CORS error so we can annotate the URLLoaderCompletionStatus
// with it later, then fail the request with the same net error code as
// other CORS errors.
cors_error_status_ = CorsErrorStatus(*cors_error, target_ip_address_space_,
resource_ip_address_space_);
return net::ERR_FAILED;
}
if (!accept_ch_frame_observer_ || info.accept_ch_frame.empty() ||
!base::FeatureList::IsEnabled(features::kAcceptCHFrame)) {
return net::OK;
}
// Find client hints that are in the ACCEPT_CH frame that were not already
// included in the request
std::vector<mojom::WebClientHintsType> hints = ComputeAcceptCHFrameHints(
info.accept_ch_frame, url_request->extra_request_headers());
// If there are hints in the ACCEPT_CH frame that weren't included in the
// original request, notify the observer. If those hints can be included,
// this URLLoader will be destroyed and another with the correct hints
// started. Otherwise, the callback to continue the network transaction will
// be called and the URLLoader will continue as normal.
if (!hints.empty()) {
accept_ch_frame_observer_->OnAcceptCHFrameReceived(
url_request->url(), hints, std::move(callback));
return net::ERR_IO_PENDING;
}
return net::OK;
}
void URLLoader::OnReceivedRedirect(net::URLRequest* url_request,
const net::RedirectInfo& redirect_info,
bool* defer_redirect) {
DCHECK(url_request == url_request_.get());
DCHECK(!deferred_redirect_url_);
deferred_redirect_url_ = std::make_unique<GURL>(redirect_info.new_url);
// Send the redirect response to the client, allowing them to inspect it and
// optionally follow the redirect.
*defer_redirect = true;
auto response = network::mojom::URLResponseHead::New();
PopulateResourceResponse(url_request_.get(), is_load_timing_enabled_,
options_, response.get());
DispatchOnRawResponse();
ReportFlaggedResponseCookies();
const CrossOriginEmbedderPolicy kEmpty;
// Enforce the Cross-Origin-Resource-Policy (CORP) header.
const CrossOriginEmbedderPolicy& cross_origin_embedder_policy =
factory_params_->client_security_state
? factory_params_->client_security_state->cross_origin_embedder_policy
: kEmpty;
if (absl::optional<mojom::BlockedByResponseReason> blocked_reason =
CrossOriginResourcePolicy::IsBlocked(
url_request_->url(), url_request_->original_url(),
url_request_->initiator(), *response, request_mode_,
request_destination_, cross_origin_embedder_policy,
coep_reporter_)) {
CompleteBlockedResponse(net::ERR_BLOCKED_BY_RESPONSE, false,
blocked_reason);
// TODO(https://crbug.com/1154250): Close the socket here.
// For more details see https://crbug.com/1154250#c17.
// Item 2 discusses redirect handling.
//
// "url_request_->AbortAndCloseConnection()" should ideally close the
// socket, but unfortunately, URLRequestHttpJob caches redirects in a way
// that ignores their response bodies, since they'll never be read. It does
// this by calling HttpCache::Transaction::StopCaching(), which also has the
// effect of detaching the HttpNetworkTransaction, which owns the socket,
// from the HttpCache::Transaction. To fix this, we'd either need to call
// StopCaching() later in the process, or make the HttpCache::Transaction
// continue to hang onto the HttpNetworkTransaction after this call.
DeleteSelf();
return;
}
SetRequestCredentials(redirect_info.new_url);
// We may need to clear out old Sec- prefixed request headers. We'll attempt
// to do this before we re-add any.
MaybeRemoveSecHeaders(url_request_.get(), redirect_info.new_url);
SetFetchMetadataHeaders(url_request_.get(), request_mode_,
has_user_activation_, request_destination_,
&redirect_info.new_url, *factory_params_,
origin_access_list_);
DCHECK_EQ(emitted_devtools_raw_request_, emitted_devtools_raw_response_);
response->emitted_extra_info = emitted_devtools_raw_request_;
url_loader_client_.Get()->OnReceiveRedirect(redirect_info,
std::move(response));
}
// static
bool URLLoader::HasFetchStreamingUploadBody(const ResourceRequest* request) {
const ResourceRequestBody* request_body = request->request_body.get();
if (!request_body)
return false;
const std::vector<DataElement>* elements = request_body->elements();
if (elements->size() != 1u)
return false;
const auto& element = elements->front();
return element.type() == mojom::DataElementDataView::Tag::kChunkedDataPipe &&
element.As<network::DataElementChunkedDataPipe>().read_only_once();
}
void URLLoader::OnAuthRequired(net::URLRequest* url_request,
const net::AuthChallengeInfo& auth_info) {
if (has_fetch_streaming_upload_body_) {
NotifyCompleted(net::ERR_FAILED);
// |this| may have been deleted.
return;
}
auto* url_loader_network_observer = GetURLLoaderNetworkServiceObserver();
if (!url_loader_network_observer) {
OnAuthCredentials(absl::nullopt);
return;
}
if (do_not_prompt_for_login_) {
OnAuthCredentials(absl::nullopt);
return;
}
DCHECK(!auth_challenge_responder_receiver_.is_bound());
url_loader_network_observer->OnAuthRequired(
fetch_window_id_, request_id_, url_request_->url(), first_auth_attempt_,
auth_info, url_request->response_headers(),
auth_challenge_responder_receiver_.BindNewPipeAndPassRemote());
auth_challenge_responder_receiver_.set_disconnect_handler(
base::BindOnce(&URLLoader::DeleteSelf, base::Unretained(this)));
first_auth_attempt_ = false;
}
void URLLoader::OnCertificateRequested(net::URLRequest* unused,
net::SSLCertRequestInfo* cert_info) {
DCHECK(!client_cert_responder_receiver_.is_bound());
auto* url_loader_network_observer = GetURLLoaderNetworkServiceObserver();
if (!url_loader_network_observer) {
CancelRequest();
return;
}
// Set up mojo endpoints for ClientCertificateResponder and bind to the
// Receiver. This enables us to receive messages regarding the client
// certificate selection.
url_loader_network_observer->OnCertificateRequested(
fetch_window_id_, cert_info,
client_cert_responder_receiver_.BindNewPipeAndPassRemote());
client_cert_responder_receiver_.set_disconnect_handler(
base::BindOnce(&URLLoader::CancelRequest, base::Unretained(this)));
}
void URLLoader::OnSSLCertificateError(net::URLRequest* request,
int net_error,
const net::SSLInfo& ssl_info,
bool fatal) {
auto* url_loader_network_observer = GetURLLoaderNetworkServiceObserver();
if (!url_loader_network_observer) {
OnSSLCertificateErrorResponse(ssl_info, net::ERR_INSECURE_RESPONSE);
return;
}
url_loader_network_observer->OnSSLCertificateError(
url_request_->url(), net_error, ssl_info, fatal,
base::BindOnce(&URLLoader::OnSSLCertificateErrorResponse,
weak_ptr_factory_.GetWeakPtr(), ssl_info));
}
void URLLoader::OnResponseStarted(net::URLRequest* url_request, int net_error) {
DCHECK(url_request == url_request_.get());
has_received_response_ = true;
ReportFlaggedResponseCookies();
if (has_fetch_streaming_upload_body_) {
ReportFetchUploadStreamingUMA(url_request_.get(),
allow_http1_for_streaming_upload_);
}
if (net_error != net::OK) {
NotifyCompleted(net_error);
// |this| may have been deleted.
return;
}
response_ = network::mojom::URLResponseHead::New();
PopulateResourceResponse(url_request_.get(), is_load_timing_enabled_,
options_, response_.get());
DispatchOnRawResponse();
// Parse and remove the Trust Tokens response headers, if any are expected,
// potentially failing the request if an error occurs.
if (trust_token_helper_) {
trust_token_helper_->Finalize(
response_.get(),
base::BindOnce(&URLLoader::OnDoneFinalizingTrustTokenOperation,
weak_ptr_factory_.GetWeakPtr()));
// |this| may have been deleted.
return;
}
ContinueOnResponseStarted();
}
void URLLoader::OnDoneFinalizingTrustTokenOperation(
mojom::TrustTokenOperationStatus status) {
trust_token_status_ = status;
MaybeSendTrustTokenOperationResultToDevTools();
if (status != mojom::TrustTokenOperationStatus::kOk) {
NotifyCompleted(net::ERR_TRUST_TOKEN_OPERATION_FAILED);
// |this| may have been deleted.
return;
}
ContinueOnResponseStarted();
}
void URLLoader::MaybeSendTrustTokenOperationResultToDevTools() {
CHECK(trust_token_helper_ && trust_token_status_);
auto* devtools_observer = GetDevToolsObserver();
if (!devtools_observer || !devtools_request_id())
return;
mojom::TrustTokenOperationResultPtr operation_result =
trust_token_helper_->CollectOperationResultWithStatus(
*trust_token_status_);
devtools_observer->OnTrustTokenOperationDone(devtools_request_id().value(),
std::move(operation_result));
}
void URLLoader::ContinueOnResponseStarted() {
MojoCreateDataPipeOptions options;
options.struct_size = sizeof(MojoCreateDataPipeOptions);
options.flags = MOJO_CREATE_DATA_PIPE_FLAG_NONE;
options.element_num_bytes = 1;
options.capacity_num_bytes =
network::features::GetDataPipeDefaultAllocationSize(
features::DataPipeAllocationSize::kLargerSizeIfPossible);
MojoResult result =
mojo::CreateDataPipe(&options, response_body_stream_, consumer_handle_);
if (result != MOJO_RESULT_OK) {
NotifyCompleted(net::ERR_INSUFFICIENT_RESOURCES);
return;
}
DCHECK(response_body_stream_.is_valid());
DCHECK(consumer_handle_.is_valid());
// Do not account header bytes when reporting received body bytes to client.
reported_total_encoded_bytes_ = url_request_->GetTotalReceivedBytes();
if (upload_progress_tracker_) {
upload_progress_tracker_->OnUploadCompleted();
upload_progress_tracker_ = nullptr;
}
peer_closed_handle_watcher_.Watch(
response_body_stream_.get(), MOJO_HANDLE_SIGNAL_PEER_CLOSED,
base::BindRepeating(&URLLoader::OnResponseBodyStreamConsumerClosed,
base::Unretained(this)));
peer_closed_handle_watcher_.ArmOrNotify();
writable_handle_watcher_.Watch(
response_body_stream_.get(), MOJO_HANDLE_SIGNAL_WRITABLE,
base::BindRepeating(&URLLoader::OnResponseBodyStreamReady,
base::Unretained(this)));
// Enforce the Cross-Origin-Resource-Policy (CORP) header.
const CrossOriginEmbedderPolicy kEmpty;
const CrossOriginEmbedderPolicy& cross_origin_embedder_policy =
factory_params_->client_security_state
? factory_params_->client_security_state->cross_origin_embedder_policy
: kEmpty;
if (absl::optional<mojom::BlockedByResponseReason> blocked_reason =
CrossOriginResourcePolicy::IsBlocked(
url_request_->url(), url_request_->original_url(),
url_request_->initiator(), *response_, request_mode_,
request_destination_, cross_origin_embedder_policy,
coep_reporter_)) {
CompleteBlockedResponse(net::ERR_BLOCKED_BY_RESPONSE, false,
blocked_reason);
// Close the socket associated with the request, to prevent leaking
// information.
url_request_->AbortAndCloseConnection();
DeleteSelf();
return;
}
// Figure out if we need to sniff (for MIME type detection or for Cross-Origin
// Read Blocking / CORB).
corb::LogUmaForOpaqueResponseBlocking(
url_request_->url(), url_request_->initiator(), request_mode_,
request_destination_, *response_);
if (factory_params_->is_corb_enabled) {
corb_analyzer_ = corb::ResponseAnalyzer::Create();
auto decision =
corb_analyzer_->Init(url_request_->url(), url_request_->initiator(),
request_mode_, *response_);
switch (decision) {
case network::corb::ResponseAnalyzer::Decision::kBlock: {
bool should_report_corb_blocking =
corb_analyzer_->ShouldReportBlockedResponse();
corb_analyzer_.reset();
is_more_corb_sniffing_needed_ = false;
if (BlockResponseForCorb(should_report_corb_blocking) ==
kWillCancelRequest)
return;
break;
}
case network::corb::ResponseAnalyzer::Decision::kAllow:
corb_analyzer_.reset();
is_more_corb_sniffing_needed_ = false;
break;
case network::corb::ResponseAnalyzer::Decision::kSniffMore:
is_more_corb_sniffing_needed_ = true;
break;
}
}
if ((options_ & mojom::kURLLoadOptionSniffMimeType)) {
if (ShouldSniffContent(url_request_->url(), *response_)) {
// We're going to look at the data before deciding what the content type
// is. That means we need to delay sending the response started IPC.
VLOG(1) << "Will sniff content for mime type: " << url_request_->url();
is_more_mime_sniffing_needed_ = true;
} else if (response_->mime_type.empty()) {
// Ugg. The server told us not to sniff the content but didn't give us
// a mime type. What's a browser to do? Turns out, we're supposed to
// treat the response as "text/plain". This is the most secure option.
response_->mime_type.assign("text/plain");
}
}
// If necessary, retrieve the associated origin policy, before sending the
// response to the client.
if (origin_policy_manager_ && url_request_->response_headers()) {
// The request should have been rejected in IsolationInfo if this were
// empty.
DCHECK(!url_request_->isolation_info().IsEmpty());
absl::optional<std::string> origin_policy_header;
std::string origin_policy_header_value;
if (url_request_->response_headers()->GetNormalizedHeader(
"origin-policy", &origin_policy_header_value)) {
origin_policy_header = origin_policy_header_value;
}
OriginPolicyManager::RetrieveOriginPolicyCallback
origin_policy_manager_done =
base::BindOnce(&URLLoader::OnOriginPolicyManagerRetrieveDone,
weak_ptr_factory_.GetWeakPtr());
// Create IsolationInfo as if this were an uncredentialed subresource
// request of the original URL.
net::IsolationInfo isolation_info = net::IsolationInfo::Create(
net::IsolationInfo::RequestType::kOther,
url_request_->isolation_info().top_frame_origin().value(),
url_request_->isolation_info().frame_origin().value(),
net::SiteForCookies());
origin_policy_manager_->RetrieveOriginPolicy(
url::Origin::Create(url_request_->url()), isolation_info,
origin_policy_header, std::move(origin_policy_manager_done));
// The callback will continue by calling
// `StartReading()` after retrieving the origin
// policy.
return;
}
StartReading();
}
void URLLoader::ReadMore() {
DCHECK(!read_in_progress_);
// Once the MIME type is sniffed, all data is sent as soon as it is read from
// the network.
DCHECK(consumer_handle_.is_valid() || !pending_write_);
if (should_pause_reading_body_) {
paused_reading_body_ = true;
return;
}
if (!pending_write_.get()) {
// TODO: we should use the abstractions in MojoAsyncResourceHandler.
DCHECK_EQ(0u, pending_write_buffer_offset_);
MojoResult result = NetToMojoPendingBuffer::BeginWrite(
&response_body_stream_, &pending_write_, &pending_write_buffer_size_);
if (result != MOJO_RESULT_OK && result != MOJO_RESULT_SHOULD_WAIT) {
// The response body stream is in a bad state. Bail.
NotifyCompleted(net::ERR_FAILED);
return;
}
DCHECK_GT(static_cast<uint32_t>(std::numeric_limits<int>::max()),
pending_write_buffer_size_);
if (consumer_handle_.is_valid()) {
DCHECK_GE(pending_write_buffer_size_,
static_cast<uint32_t>(net::kMaxBytesToSniff));
}
if (result == MOJO_RESULT_SHOULD_WAIT) {
// The pipe is full. We need to wait for it to have more space.
writable_handle_watcher_.ArmOrNotify();
return;
}
}
auto buf = base::MakeRefCounted<NetToMojoIOBuffer>(
pending_write_.get(), pending_write_buffer_offset_);
read_in_progress_ = true;
int bytes_read = url_request_->Read(
buf.get(), static_cast<int>(pending_write_buffer_size_ -
pending_write_buffer_offset_));
if (bytes_read != net::ERR_IO_PENDING) {
DidRead(bytes_read, true);
// |this| may have been deleted.
}
}
void URLLoader::DidRead(int num_bytes, bool completed_synchronously) {
DCHECK(read_in_progress_);
read_in_progress_ = false;
size_t new_data_offset = pending_write_buffer_offset_;
if (num_bytes > 0) {
pending_write_buffer_offset_ += num_bytes;
// Only notify client of download progress if we're done sniffing and
// started sending response.
if (!consumer_handle_.is_valid()) {
int64_t total_encoded_bytes = url_request_->GetTotalReceivedBytes();
int64_t delta = total_encoded_bytes - reported_total_encoded_bytes_;
DCHECK_LE(0, delta);
if (delta)
url_loader_client_.Get()->OnTransferSizeUpdated(delta);
reported_total_encoded_bytes_ = total_encoded_bytes;
}
}
if (update_body_read_before_paused_) {
update_body_read_before_paused_ = false;
body_read_before_paused_ = url_request_->GetRawBodyBytes();
}
bool complete_read = true;
if (consumer_handle_.is_valid()) {
// |pending_write_| may be null if the job self-aborts due to a suspend;
// this will have |consumer_handle_| valid when the loader is paused.
if (pending_write_) {
// Limit sniffing to the first net::kMaxBytesToSniff.
size_t data_length = pending_write_buffer_offset_;
if (data_length > net::kMaxBytesToSniff)
data_length = net::kMaxBytesToSniff;
base::StringPiece data(pending_write_->buffer(), data_length);
bool stop_sniffing_after_processing_current_data =
(num_bytes <= 0 ||
pending_write_buffer_offset_ >= net::kMaxBytesToSniff);
if (is_more_mime_sniffing_needed_) {
const std::string& type_hint = response_->mime_type;
std::string new_type;
is_more_mime_sniffing_needed_ = !net::SniffMimeType(
data, url_request_->url(), type_hint,
net::ForceSniffFileUrlsForHtml::kDisabled, &new_type);
// SniffMimeType() returns false if there is not enough data to
// determine the mime type. However, even if it returns false, it
// returns a new type that is probably better than the current one.
response_->mime_type.assign(new_type);
response_->did_mime_sniff = true;
if (stop_sniffing_after_processing_current_data)
is_more_mime_sniffing_needed_ = false;
}
if (is_more_corb_sniffing_needed_) {
corb::ResponseAnalyzer::Decision corb_decision =
corb::ResponseAnalyzer::Decision::kSniffMore;
// `has_new_data_to_sniff` can be false at the end-of-stream.
bool has_new_data_to_sniff = new_data_offset < data.length();
if (has_new_data_to_sniff)
corb_decision = corb_analyzer_->Sniff(data);
if (corb_decision == corb::ResponseAnalyzer::Decision::kSniffMore &&
stop_sniffing_after_processing_current_data) {
corb_decision = corb_analyzer_->HandleEndOfSniffableResponseBody();
DCHECK_NE(corb::ResponseAnalyzer::Decision::kSniffMore,
corb_decision);
}
switch (corb_decision) {
case network::corb::ResponseAnalyzer::Decision::kBlock: {
bool should_report_corb_blocking =
corb_analyzer_->ShouldReportBlockedResponse();
corb_analyzer_.reset();
is_more_corb_sniffing_needed_ = false;
if (BlockResponseForCorb(should_report_corb_blocking) ==
kWillCancelRequest)
return;
break;
}
case network::corb::ResponseAnalyzer::Decision::kAllow:
corb_analyzer_.reset();
is_more_corb_sniffing_needed_ = false;
break;
case network::corb::ResponseAnalyzer::Decision::kSniffMore:
break;
}
}
}
if (!is_more_mime_sniffing_needed_ && !is_more_corb_sniffing_needed_) {
SendResponseToClient();
} else {
complete_read = false;
}
}
if (num_bytes <= 0) {
// There may be no |pending_write_| if a URLRequestJob cancelled itself in
// URLRequestJob::OnSuspend() after receiving headers, while there was no
// pending read.
// TODO(mmenke): That case is rather unfortunate - something should be done
// at the socket layer instead, both to make for a better API (Only complete
// reads when there's a pending read), and to cover all TCP socket uses,
// since the concern is the effect that entering suspend mode has on
// sockets. See https://crbug.com/651120.
if (pending_write_)
CompletePendingWrite(num_bytes == 0);
NotifyCompleted(num_bytes);
// |this| will have been deleted.
return;
}
if (complete_read) {
CompletePendingWrite(true /* success */);
}
if (completed_synchronously) {
base::ThreadTaskRunnerHandle::Get()->PostTask(
FROM_HERE,
base::BindOnce(&URLLoader::ReadMore, weak_ptr_factory_.GetWeakPtr()));
} else {
ReadMore();
}
}
void URLLoader::OnReadCompleted(net::URLRequest* url_request, int bytes_read) {
DCHECK(url_request == url_request_.get());
DidRead(bytes_read, false);
// |this| may have been deleted.
}
int URLLoader::OnBeforeStartTransaction(
const net::HttpRequestHeaders& headers,
net::NetworkDelegate::OnBeforeStartTransactionCallback callback) {
if (header_client_) {
header_client_->OnBeforeSendHeaders(
headers,
base::BindOnce(&URLLoader::OnBeforeSendHeadersComplete,
weak_ptr_factory_.GetWeakPtr(), std::move(callback)));
return net::ERR_IO_PENDING;
}
return net::OK;
}
int URLLoader::OnHeadersReceived(
net::CompletionOnceCallback callback,
const net::HttpResponseHeaders* original_response_headers,
scoped_refptr<net::HttpResponseHeaders>* override_response_headers,
const net::IPEndPoint& endpoint,
absl::optional<GURL>* preserve_fragment_on_redirect_url) {
if (header_client_) {
header_client_->OnHeadersReceived(
original_response_headers->raw_headers(), endpoint,
base::BindOnce(&URLLoader::OnHeadersReceivedComplete,
weak_ptr_factory_.GetWeakPtr(), std::move(callback),
override_response_headers,
preserve_fragment_on_redirect_url));
return net::ERR_IO_PENDING;
}
return net::OK;
}
mojom::LoadInfoPtr URLLoader::CreateLoadInfo() {
auto load_info = mojom::LoadInfo::New();
load_info->timestamp = base::TimeTicks::Now();
load_info->host = url_request_->url().host();
auto load_state = url_request_->GetLoadState();
load_info->load_state = static_cast<uint32_t>(load_state.state);
load_info->state_param = std::move(load_state.param);
auto upload_progress = url_request_->GetUploadProgress();
load_info->upload_size = upload_progress.size();
load_info->upload_position = upload_progress.position();
return load_info;
}
void URLLoader::OnBeforeURLRequest() {
if (url_loader_factory_)
return url_loader_factory_->OnBeforeURLRequest();
}
net::LoadState URLLoader::GetLoadState() const {
return url_request_->GetLoadState().state;
}
net::UploadProgress URLLoader::GetUploadProgress() const {
return url_request_->GetUploadProgress();
}
int32_t URLLoader::GetProcessId() const {
return factory_params_->process_id;
}
void URLLoader::SetEnableReportingRawHeaders(bool allow) {
enable_reporting_raw_headers_ = allow;
}
uint32_t URLLoader::GetResourceType() const {
return resource_type_;
}
bool URLLoader::AllowCookies(
const GURL& url,
const net::SiteForCookies& site_for_cookies) const {
net::StaticCookiePolicy::Type policy =
net::StaticCookiePolicy::ALLOW_ALL_COOKIES;
if (options_ & mojom::kURLLoadOptionBlockAllCookies) {
policy = net::StaticCookiePolicy::BLOCK_ALL_COOKIES;
} else if (options_ & mojom::kURLLoadOptionBlockThirdPartyCookies) {
policy = net::StaticCookiePolicy::BLOCK_ALL_THIRD_PARTY_COOKIES;
} else {
return true;
}
return net::StaticCookiePolicy(policy).CanAccessCookies(
url, site_for_cookies) == net::OK;
}
// static
URLLoader* URLLoader::ForRequest(const net::URLRequest& request) {
auto* pointer =
static_cast<UnownedPointer*>(request.GetUserData(kUserDataKey));
if (!pointer)
return nullptr;
return pointer->get();
}
// static
void URLLoader::LogConcerningRequestHeaders(
const net::HttpRequestHeaders& request_headers,
bool added_during_redirect) {
net::HttpRequestHeaders::Iterator it(request_headers);
bool concerning_header_found = false;
while (it.GetNext()) {
for (const auto& header : kConcerningHeaders) {
if (base::EqualsCaseInsensitiveASCII(header.name, it.name())) {
concerning_header_found = true;
if (added_during_redirect) {
UMA_HISTOGRAM_ENUMERATION(
"NetworkService.ConcerningRequestHeader.HeaderAddedOnRedirect",
header.histogram_id);
} else {
UMA_HISTOGRAM_ENUMERATION(
"NetworkService.ConcerningRequestHeader.HeaderPresentOnStart",
header.histogram_id);
}
}
}
}
if (added_during_redirect) {
UMA_HISTOGRAM_BOOLEAN(
"NetworkService.ConcerningRequestHeader.AddedOnRedirect",
concerning_header_found);
} else {
UMA_HISTOGRAM_BOOLEAN(
"NetworkService.ConcerningRequestHeader.PresentOnStart",
concerning_header_found);
}
}
void URLLoader::OnAuthCredentials(
const absl::optional<net::AuthCredentials>& credentials) {
auth_challenge_responder_receiver_.reset();
if (!credentials.has_value()) {
url_request_->CancelAuth();
} else {
// CancelAuth will proceed to the body, so cookies only need to be reported
// here.
ReportFlaggedResponseCookies();
url_request_->SetAuth(credentials.value());
}
}
void URLLoader::ContinueWithCertificate(
const scoped_refptr<net::X509Certificate>& x509_certificate,
const std::string& provider_name,
const std::vector<uint16_t>& algorithm_preferences,
mojo::PendingRemote<mojom::SSLPrivateKey> ssl_private_key) {
client_cert_responder_receiver_.reset();
auto key = base::MakeRefCounted<SSLPrivateKeyInternal>(
provider_name, algorithm_preferences, std::move(ssl_private_key));
url_request_->ContinueWithCertificate(std::move(x509_certificate),
std::move(key));
}
void URLLoader::ContinueWithoutCertificate() {
client_cert_responder_receiver_.reset();
url_request_->ContinueWithCertificate(nullptr, nullptr);
}
void URLLoader::CancelRequest() {
client_cert_responder_receiver_.reset();
url_request_->CancelWithError(net::ERR_SSL_CLIENT_AUTH_CERT_NEEDED);
}
void URLLoader::NotifyCompleted(int error_code) {
// Ensure sending the final upload progress message here, since
// OnResponseCompleted can be called without OnResponseStarted on cancellation
// or error cases.
if (upload_progress_tracker_) {
upload_progress_tracker_->OnUploadCompleted();
upload_progress_tracker_ = nullptr;
}
auto* url_loader_network_observer = GetURLLoaderNetworkServiceObserver();
if (url_loader_network_observer &&
(url_request_->GetTotalReceivedBytes() > 0 ||
url_request_->GetTotalSentBytes() > 0)) {
url_loader_network_observer->OnDataUseUpdate(
url_request_->traffic_annotation().unique_id_hash_code,
url_request_->GetTotalReceivedBytes(),
url_request_->GetTotalSentBytes());
}
if (url_loader_client_.Get()) {
if (consumer_handle_.is_valid())
SendResponseToClient();
URLLoaderCompletionStatus status;
status.error_code = error_code;
if (error_code == net::ERR_QUIC_PROTOCOL_ERROR) {
net::NetErrorDetails details;
url_request_->PopulateNetErrorDetails(&details);
status.extended_error_code = details.quic_connection_error;
}
status.exists_in_cache = url_request_->response_info().was_cached;
status.completion_time = base::TimeTicks::Now();
status.encoded_data_length = url_request_->GetTotalReceivedBytes();
status.encoded_body_length = url_request_->GetRawBodyBytes();
status.decoded_body_length = total_written_bytes_;
status.proxy_server = url_request_->proxy_server();
status.resolve_error_info =
url_request_->response_info().resolve_error_info;
if (trust_token_status_)
status.trust_token_operation_status = *trust_token_status_;
status.cors_error_status = cors_error_status_;
if ((options_ & mojom::kURLLoadOptionSendSSLInfoForCertificateError) &&
net::IsCertStatusError(url_request_->ssl_info().cert_status)) {
status.ssl_info = url_request_->ssl_info();
}
url_loader_client_.Get()->OnComplete(status);
}
DeleteSelf();
}
void URLLoader::OnMojoDisconnect() {
NotifyCompleted(net::ERR_FAILED);
}
void URLLoader::OnResponseBodyStreamConsumerClosed(MojoResult result) {
NotifyCompleted(net::ERR_FAILED);
}
void URLLoader::OnResponseBodyStreamReady(MojoResult result) {
if (result != MOJO_RESULT_OK) {
NotifyCompleted(net::ERR_FAILED);
return;
}
ReadMore();
}
void URLLoader::DeleteSelf() {
std::move(delete_callback_).Run(this);
}
void URLLoader::SendResponseToClient() {
TRACE_EVENT("loading", "network::URLLoader::SendResponseToClient",
perfetto::Flow::FromPointer(this), "url", url_request_->url());
DCHECK_EQ(emitted_devtools_raw_request_, emitted_devtools_raw_response_);
response_->emitted_extra_info = emitted_devtools_raw_request_;
url_loader_client_.Get()->OnReceiveResponse(std::move(response_));
url_loader_client_.Get()->OnStartLoadingResponseBody(
std::move(consumer_handle_));
}
void URLLoader::CompletePendingWrite(bool success) {
if (success) {
// The write can only be completed immediately in case of a success, since
// doing so invalidates memory of any attached NetToMojoIOBuffer's; but in
// case of an abort, particularly one caused by a suspend, the failure may
// be delivered to URLLoader while the disk_cache layer is still hanging on
// to the now-invalid IOBuffer in some worker thread trying to commit it to
// disk. In case of an error, this will have to wait till everything is
// destroyed.
response_body_stream_ =
pending_write_->Complete(pending_write_buffer_offset_);
}
total_written_bytes_ += pending_write_buffer_offset_;
pending_write_ = nullptr;
pending_write_buffer_offset_ = 0;
}
void URLLoader::SetRawResponseHeaders(
scoped_refptr<const net::HttpResponseHeaders> headers) {
raw_response_headers_ = headers;
}
void URLLoader::NotifyEarlyResponse(
scoped_refptr<const net::HttpResponseHeaders> headers) {
DCHECK(!has_received_response_);
DCHECK(url_loader_client_.Get());
DCHECK(headers);
DCHECK_EQ(headers->response_code(), 103);
// Calculate IP address space.
mojom::ParsedHeadersPtr parsed_headers =
PopulateParsedHeaders(headers.get(), url_request_->url());
std::vector<GURL> url_list_via_service_worker;
net::IPEndPoint transaction_endpoint;
bool has_endpoint =
url_request_->GetTransactionRemoteEndpoint(&transaction_endpoint);
DCHECK(has_endpoint);
CalculateClientAddressSpaceParams params(
url_list_via_service_worker, parsed_headers, transaction_endpoint);
mojom::IPAddressSpace ip_address_space =
CalculateClientAddressSpace(url_request_->url(), params);
// Populate origin trial tokens.
std::vector<std::string> origin_trial_tokens;
size_t iter = 0;
std::string value;
while (headers->EnumerateHeader(&iter, "Origin-Trial", &value)) {
origin_trial_tokens.push_back(value);
}
url_loader_client_.Get()->OnReceiveEarlyHints(
mojom::EarlyHints::New(std::move(parsed_headers), ip_address_space,
std::move(origin_trial_tokens)));
}
void URLLoader::SetRawRequestHeadersAndNotify(
net::HttpRawRequestHeaders headers) {
auto* devtools_observer = GetDevToolsObserver();
// If we have seen_raw_request_headers_, then don't notify DevTools to prevent
// duplicate ExtraInfo events.
if (!seen_raw_request_headers_ && devtools_observer &&
devtools_request_id()) {
std::vector<network::mojom::HttpRawHeaderPairPtr> header_array;
header_array.reserve(headers.headers().size());
for (const auto& header : headers.headers()) {
network::mojom::HttpRawHeaderPairPtr pair =
network::mojom::HttpRawHeaderPair::New();
pair->key = header.first;
pair->value = header.second;
header_array.push_back(std::move(pair));
}
DispatchOnRawRequest(std::move(header_array));
}
if (auto* cookie_observer = GetCookieAccessObserver()) {
std::vector<mojom::CookieOrLineWithAccessResultPtr> reported_cookies;
for (const auto& cookie_with_access_result :
url_request_->maybe_sent_cookies()) {
if (ShouldNotifyAboutCookie(
cookie_with_access_result.access_result.status)) {
reported_cookies.push_back(mojom::CookieOrLineWithAccessResult::New(
mojom::CookieOrLine::NewCookie(cookie_with_access_result.cookie),
cookie_with_access_result.access_result));
}
}
if (!reported_cookies.empty()) {
cookie_observer->OnCookiesAccessed(mojom::CookieAccessDetails::New(
mojom::CookieAccessDetails::Type::kRead, url_request_->url(),
url_request_->site_for_cookies(), std::move(reported_cookies),
devtools_request_id()));
}
}
}
void URLLoader::DispatchOnRawRequest(
std::vector<network::mojom::HttpRawHeaderPairPtr> headers) {
auto* devtools_observer = GetDevToolsObserver();
DCHECK(devtools_observer && devtools_request_id());
seen_raw_request_headers_ = true;
mojom::ClientSecurityStatePtr client_security_state;
if (factory_params_->client_security_state) {
client_security_state = factory_params_->client_security_state->Clone();
} else if (request_client_security_state_) {
client_security_state = request_client_security_state_->Clone();
}
net::LoadTimingInfo load_timing_info;
url_request_->GetLoadTimingInfo(&load_timing_info);
emitted_devtools_raw_request_ = true;
devtools_observer->OnRawRequest(
devtools_request_id().value(), url_request_->maybe_sent_cookies(),
std::move(headers), load_timing_info.request_start,
std::move(client_security_state));
}
bool URLLoader::DispatchOnRawResponse() {
auto* devtools_observer = GetDevToolsObserver();
if (!devtools_observer || !devtools_request_id() ||
!url_request_->response_headers()) {
return false;
}
std::vector<network::mojom::HttpRawHeaderPairPtr> header_array;
// This is gated by enable_reporting_raw_headers_ to be backwards compatible
// with the old report_raw_headers behavior, where we wouldn't even send
// raw_response_headers_ to the trusted browser process based devtools
// instrumentation. This is observed in the case of HSTS redirects, where
// url_request_->response_headers has the HSTS redirect headers, like
// Non-Authoritative-Reason, but raw_response_headers_ has something else
// which doesn't include HSTS information. This is tested by
// DevToolsTest.TestRawHeadersWithRedirectAndHSTS.
// TODO(crbug.com/1234823): Remove enable_reporting_raw_headers_
const net::HttpResponseHeaders* response_headers =
raw_response_headers_ && enable_reporting_raw_headers_
? raw_response_headers_.get()
: url_request_->response_headers();
size_t iterator = 0;
std::string name, value;
while (response_headers->EnumerateHeaderLines(&iterator, &name, &value)) {
network::mojom::HttpRawHeaderPairPtr pair =
network::mojom::HttpRawHeaderPair::New();
pair->key = name;
pair->value = value;
header_array.push_back(std::move(pair));
}
// Only send the "raw" header text when the headers were actually send in
// text form (i.e. not QUIC or SPDY)
absl::optional<std::string> raw_response_headers;
const net::HttpResponseInfo& response_info = url_request_->response_info();
if (!response_info.DidUseQuic() && !response_info.was_fetched_via_spdy) {
raw_response_headers =
absl::make_optional(net::HttpUtil::ConvertHeadersBackToHTTPResponse(
response_headers->raw_headers()));
}
if (!seen_raw_request_headers_) {
// If we send OnRawResponse(), make sure we send OnRawRequest() event if
// we haven't had the callback from net, to make the client life easier.
DispatchOnRawRequest({});
}
emitted_devtools_raw_response_ = true;
devtools_observer->OnRawResponse(
devtools_request_id().value(), url_request_->maybe_stored_cookies(),
std::move(header_array), raw_response_headers, resource_ip_address_space_,
response_headers->response_code());
return true;
}
void URLLoader::SendUploadProgress(const net::UploadProgress& progress) {
url_loader_client_.Get()->OnUploadProgress(
progress.position(), progress.size(),
base::BindOnce(&URLLoader::OnUploadProgressACK,
weak_ptr_factory_.GetWeakPtr()));
}
void URLLoader::OnUploadProgressACK() {
if (upload_progress_tracker_)
upload_progress_tracker_->OnAckReceived();
}
void URLLoader::OnSSLCertificateErrorResponse(const net::SSLInfo& ssl_info,
int net_error) {
if (net_error == net::OK) {
url_request_->ContinueDespiteLastError();
return;
}
url_request_->CancelWithSSLError(net_error, ssl_info);
}
bool URLLoader::HasDataPipe() const {
return pending_write_ || response_body_stream_.is_valid();
}
void URLLoader::RecordBodyReadFromNetBeforePausedIfNeeded() {
if (update_body_read_before_paused_)
body_read_before_paused_ = url_request_->GetRawBodyBytes();
if (body_read_before_paused_ != -1) {
if (!url_request_->was_cached()) {
UMA_HISTOGRAM_COUNTS_1M("Network.URLLoader.BodyReadFromNetBeforePaused",
body_read_before_paused_);
} else {
DVLOG(1) << "The request has been paused, but "
<< "Network.URLLoader.BodyReadFromNetBeforePaused is not "
<< "reported because the response body may be from cache. "
<< "body_read_before_paused_: " << body_read_before_paused_;
}
}
}
void URLLoader::ResumeStart() {
url_request_->LogUnblocked();
url_request_->Start();
}
void URLLoader::OnBeforeSendHeadersComplete(
net::NetworkDelegate::OnBeforeStartTransactionCallback callback,
int result,
const absl::optional<net::HttpRequestHeaders>& headers) {
std::move(callback).Run(result, headers);
}
void URLLoader::OnHeadersReceivedComplete(
net::CompletionOnceCallback callback,
scoped_refptr<net::HttpResponseHeaders>* out_headers,
absl::optional<GURL>* out_preserve_fragment_on_redirect_url,
int result,
const absl::optional<std::string>& headers,
const absl::optional<GURL>& preserve_fragment_on_redirect_url) {
if (headers) {
*out_headers =
base::MakeRefCounted<net::HttpResponseHeaders>(headers.value());
}
*out_preserve_fragment_on_redirect_url = preserve_fragment_on_redirect_url;
std::move(callback).Run(result);
}
void URLLoader::CompleteBlockedResponse(
int error_code,
bool should_report_corb_blocking,
absl::optional<mojom::BlockedByResponseReason> reason) {
if (has_received_response_) {
// The response headers and body shouldn't yet be sent to the
// URLLoaderClient.
DCHECK(response_);
DCHECK(consumer_handle_.is_valid());
}
// Tell the URLLoaderClient that the response has been completed.
URLLoaderCompletionStatus status;
status.error_code = error_code;
status.completion_time = base::TimeTicks::Now();
status.encoded_data_length = 0;
status.encoded_body_length = 0;
status.decoded_body_length = 0;
status.should_report_corb_blocking = should_report_corb_blocking;
status.blocked_by_response_reason = reason;
url_loader_client_.Get()->OnComplete(status);
// Reset the connection to the URLLoaderClient. This helps ensure that we
// won't accidentally leak any data to the renderer from this point on.
url_loader_client_.Reset();
}
URLLoader::BlockResponseForCorbResult URLLoader::BlockResponseForCorb(
bool should_report_corb_blocking) {
// CORB should only do work after the response headers have been received.
DCHECK(has_received_response_);
// The response headers and body shouldn't yet be sent to the URLLoaderClient.
DCHECK(response_);
DCHECK(consumer_handle_.is_valid());
// Send stripped headers to the real URLLoaderClient.
corb::SanitizeBlockedResponseHeaders(*response_);
url_loader_client_.Get()->OnReceiveResponse(response_->Clone());
// Send empty body to the real URLLoaderClient.
mojo::ScopedDataPipeProducerHandle producer_handle;
mojo::ScopedDataPipeConsumerHandle consumer_handle;
CHECK_EQ(mojo::CreateDataPipe(kBlockedBodyAllocationSize, producer_handle,
consumer_handle),
MOJO_RESULT_OK);
producer_handle.reset();
url_loader_client_.Get()->OnStartLoadingResponseBody(
std::move(consumer_handle));
// Tell the real URLLoaderClient that the response has been completed.
if (corb_detachable_) {
// TODO(lukasza): https://crbug.com/827633#c5: Consider passing net::ERR_OK
// instead. net::ERR_ABORTED was chosen for consistency with the old CORB
// implementation that used to go through DetachableResourceHandler.
CompleteBlockedResponse(net::ERR_ABORTED, should_report_corb_blocking);
} else {
// CORB responses are reported as a success.
CompleteBlockedResponse(net::OK, should_report_corb_blocking);
}
// If the factory is asking to complete requests of this type, then we need to
// continue processing the response to make sure the network cache is
// populated. Otherwise we can cancel the request.
if (corb_detachable_) {
// Discard any remaining callbacks or data by rerouting the pipes to
// EmptyURLLoaderClient.
receiver_.reset();
EmptyURLLoaderClientWrapper::DrainURLRequest(
url_loader_client_.BindNewPipeAndPassReceiver(),
receiver_.BindNewPipeAndPassRemote());
receiver_.set_disconnect_handler(
base::BindOnce(&URLLoader::OnMojoDisconnect, base::Unretained(this)));
// Ask the caller to continue processing the request.
return kContinueRequest;
}
// Close the socket associated with the request, to prevent leaking
// information.
url_request_->AbortAndCloseConnection();
// Delete self and cancel the request - the caller doesn't need to continue.
//
// DeleteSelf is posted asynchronously, to make sure that the callers (e.g.
// URLLoader::OnResponseStarted and/or URLLoader::DidRead instance methods)
// can still safely dereference |this|.
base::ThreadTaskRunnerHandle::Get()->PostTask(
FROM_HERE,
base::BindOnce(&URLLoader::DeleteSelf, weak_ptr_factory_.GetWeakPtr()));
return kWillCancelRequest;
}
void URLLoader::ReportFlaggedResponseCookies() {
if (auto* cookie_observer = GetCookieAccessObserver()) {
std::vector<mojom::CookieOrLineWithAccessResultPtr> reported_cookies;
for (const auto& cookie_line_and_access_result :
url_request_->maybe_stored_cookies()) {
if (ShouldNotifyAboutCookie(
cookie_line_and_access_result.access_result.status)) {
mojom::CookieOrLinePtr cookie_or_line = mojom::CookieOrLine::New();
if (cookie_line_and_access_result.cookie.has_value()) {
cookie_or_line->set_cookie(
cookie_line_and_access_result.cookie.value());
} else {
cookie_or_line->set_cookie_string(
cookie_line_and_access_result.cookie_string);
}
reported_cookies.push_back(mojom::CookieOrLineWithAccessResult::New(
std::move(cookie_or_line),
cookie_line_and_access_result.access_result));
}
}
if (!reported_cookies.empty()) {
cookie_observer->OnCookiesAccessed(mojom::CookieAccessDetails::New(
mojom::CookieAccessDetails::Type::kChange, url_request_->url(),
url_request_->site_for_cookies(), std::move(reported_cookies),
devtools_request_id()));
}
}
}
void URLLoader::StartReading() {
if (!is_more_mime_sniffing_needed_ && !is_more_corb_sniffing_needed_) {
// Treat feed types as text/plain.
if (response_->mime_type == "application/rss+xml" ||
response_->mime_type == "application/atom+xml") {
response_->mime_type.assign("text/plain");
}
SendResponseToClient();
}
// Start reading...
ReadMore();
}
void URLLoader::OnOriginPolicyManagerRetrieveDone(
const OriginPolicy& origin_policy) {
response_->origin_policy = origin_policy;
StartReading();
}
bool URLLoader::ShouldForceIgnoreSiteForCookies(
const ResourceRequest& request) {
// Ignore site for cookies in requests from an initiator covered by the
// same-origin-policy exclusions in `origin_access_list_` (typically requests
// initiated by Chrome Extensions).
if (request.request_initiator.has_value() &&
cors::OriginAccessList::AccessState::kAllowed ==
origin_access_list_.CheckAccessState(
request.request_initiator.value(), request.url)) {
return true;
}
// Convert `site_for_cookies` into an origin (an opaque origin if
// `net::SiteForCookies::IsNull()` returns true).
//
// Note that `site_for_cookies` is a _site_ rather than an _origin_, but for
// Chrome Extensions the _site_ and _origin_ of a host are the same extension
// id. Thanks to this, for Chrome Extensions, we can pass a _site_ into
// OriginAccessChecks (which normally expect an _origin_).
url::Origin site_origin =
url::Origin::Create(request.site_for_cookies.RepresentativeUrl());
// If `site_for_cookies` represents an origin that is granted access to the
// initiator and the target by `origin_access_list_` (typically such
// `site_for_cookies` represents a Chrome Extension), then we also should
// force ignoring of site for cookies if the initiator and the target are
// same-site.
//
// Ideally we would walk up the frame tree and check that each ancestor is
// first-party to the main frame (treating the `origin_access_list_`
// exceptions as "first-party"). But walking up the tree is not possible in
// //services/network and so we make do with just checking the direct
// initiator of the request.
//
// We also check same-siteness between the initiator and the requested URL,
// because setting `force_ignore_site_for_cookies` to true causes Strict
// cookies to be attached, and having the initiator be same-site to the
// request URL is a requirement for Strict cookies (see
// net::cookie_util::ComputeSameSiteContext).
if (!site_origin.opaque() && request.request_initiator.has_value()) {
bool site_can_access_target =
cors::OriginAccessList::AccessState::kAllowed ==
origin_access_list_.CheckAccessState(site_origin, request.url);
bool site_can_access_initiator =
cors::OriginAccessList::AccessState::kAllowed ==
origin_access_list_.CheckAccessState(
site_origin, request.request_initiator->GetURL());
net::SiteForCookies site_of_initiator =
net::SiteForCookies::FromOrigin(request.request_initiator.value());
bool are_initiator_and_target_same_site =
site_of_initiator.IsFirstParty(request.url);
if (site_can_access_initiator && site_can_access_target &&
are_initiator_and_target_same_site) {
return true;
}
}
return false;
}
bool URLLoader::ShouldForceIgnoreTopFramePartyForCookies() const {
const net::IsolationInfo& isolation_info = url_request_->isolation_info();
const absl::optional<url::Origin>& top_frame_origin =
isolation_info.top_frame_origin();
if (!top_frame_origin || top_frame_origin->opaque())
return false;
const absl::optional<std::set<net::SchemefulSite>>& party_context =
isolation_info.party_context();
if (!party_context)
return false;
// The top frame origin must have access to the request URL.
if (cors::OriginAccessList::AccessState::kAllowed !=
origin_access_list_.CheckAccessState(*top_frame_origin,
url_request_->url())) {
return false;
}
// The top frame origin must have access to each site in the party_context.
return base::ranges::all_of(
*party_context,
[this, &top_frame_origin](const net::SchemefulSite& site) {
return origin_access_list_.CheckAccessState(*top_frame_origin,
site.GetURL()) ==
cors::OriginAccessList::AccessState::kAllowed;
});
}
mojom::DevToolsObserver* URLLoader::GetDevToolsObserver() const {
if (devtools_observer_)
return devtools_observer_.get();
if (url_loader_factory_)
return url_loader_factory_->GetDevToolsObserver();
return nullptr;
}
mojom::CookieAccessObserver* URLLoader::GetCookieAccessObserver() const {
if (cookie_observer_)
return cookie_observer_.get();
if (url_loader_factory_)
return url_loader_factory_->GetCookieAccessObserver();
return nullptr;
}
mojom::URLLoaderNetworkServiceObserver*
URLLoader::GetURLLoaderNetworkServiceObserver() const {
if (url_loader_network_observer_)
return url_loader_network_observer_.get();
if (url_loader_factory_)
return url_loader_factory_->GetURLLoaderNetworkServiceObserver();
return nullptr;
}
void URLLoader::SetRequestCredentials(const GURL& url) {
bool coep_allow_credentials = CoepAllowCredentials(url);
bool allow_credentials = ShouldAllowCredentials(request_credentials_mode_) &&
coep_allow_credentials;
bool allow_client_certificates =
ShouldSendClientCertificates(request_credentials_mode_) &&
coep_allow_credentials;
// The decision not to include credentials is sticky. This is equivalent to
// checking the tainted origin flag in the fetch specification.
if (!allow_credentials)
url_request_->set_allow_credentials(false);
if (!allow_client_certificates)
url_request_->set_send_client_certs(false);
// Contrary to Firefox or blink's cache, the HTTP cache doesn't distinguish
// requests including user's credentials from the anonymous ones yet. See
// https://docs.google.com/document/d/1lvbiy4n-GM5I56Ncw304sgvY5Td32R6KHitjRXvkZ6U
// As a workaround until a solution is implemented, the cached responses
// aren't used for those requests.
if (!coep_allow_credentials) {
DCHECK(base::FeatureList::IsEnabled(
features::kCrossOriginEmbedderPolicyCredentialless));
url_request_->SetLoadFlags(url_request_->load_flags() |
net::LOAD_BYPASS_CACHE);
}
}
// [spec]:
// https://fetch.spec.whatwg.org/#cross-origin-embedder-policy-allows-credentials
bool URLLoader::CoepAllowCredentials(const GURL& url) {
// [spec]: To check if Cross-Origin-Embedder-Policy allows credentials, given
// a request request, run these steps:
// [spec] 1. If request’s mode is not "no-cors", then return true.
switch (request_mode_) {
case mojom::RequestMode::kCors:
case mojom::RequestMode::kCorsWithForcedPreflight:
case mojom::RequestMode::kNavigate:
case mojom::RequestMode::kSameOrigin:
return true;
case mojom::RequestMode::kNoCors:
break;
}
// [spec]: 2. If request’s client is null, then return true.
if (!factory_params_->client_security_state)
return true;
// [spec]: 3. If request’s client’s policy container’s embedder policy’s value
// is not "credentialless", then return true.
if (factory_params_->client_security_state->cross_origin_embedder_policy
.value != mojom::CrossOriginEmbedderPolicyValue::kCredentialless) {
return true;
}
DCHECK(base::FeatureList::IsEnabled(
features::kCrossOriginEmbedderPolicyCredentialless));
// [spec]: 4. If request’s origin is same origin with request’s current URL’s
// origin and request does not have a redirect-tainted origin, then
// return true.
url::Origin request_initiator =
url_request_->initiator().value_or(url::Origin());
if (request_initiator.IsSameOriginWith(url))
return true;
// [spec]: 5. Return false.
return false;
}
} // namespace network